科学家通过红移数据推测,这个星系正在远离我们。Kēxuéjiā tōngguò hóngyí shùjù tuīcè, zhè ge xīngxì zhèngzài yuǎnlí wǒmen.Scientists inferred from redshift data that this galaxy is moving away from us.
我们所在的星系叫银河系。Wǒmen suǒzài de xīngxì jiào Yínhéxì.The galaxy we live in is called the Milky Way.
望远镜让我们看到了许多遥远的星系。Wàngyuǎnjìng ràng wǒmen kàndào le xǔduō yáoyuǎn de xīngxì.The telescope lets us see many distant galaxies.